Finding the Fourth Proportional to 2,398.58, 3,310.55 and 1,612.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.58 : 3,310.55 = 1,612.17 : x
2. Step 2: Convert to fraction form
   2,398.58/3,310.55 = 1,612.17/x
3. Step 3: Cross multiply
   2,398.58x = 3,310.55 × 1,612.17
4. Step 4: Simplify right side
   2,398.58x = 5,337,144.78
5. Step 5: Solve for x
   x = 5,337,144.78/2,398.58
6. Step 6: Final answer
   x = 2,225.13